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A 4mm Scale Model of Bristol Barrow Road Engine Shed in P4

 

 

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Entries in this blog

 

Bristol Barrow Road - A Bachmann Patriot

My latest conversion is a Bachmann Patriot which has the same chassis as the Jubilee. Wheels are again Alan Gibson with Markits crankpins which have been spaced using 4 x 1mm washers per axle. Brake shoes have been removed an refixed with additional plasticard spacers. The tender has a Dave Franks Fowler sprung chassis.   Below is a link to youtube.  Question: - how do you upload videos from youtube these days?   https://youtu.be/yib4hZZ-TbI    
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Bristol Barrow Road - Empty Mineral Train

To the north of Bristol Barrow Road shed and Lawrence Hill Junction there is an incline on an 1 in 60 gradient to Fishponds Station in the NE of Bristol. The gradient starts at 1 in 89 immediately under Barrow Road Arches, which is the road which bisects the shed yard. The working timetable limits the number of wagons descending this incline to 30. With this in mind I have just finished converting 15 Bachmann 16T minerals to P4 to add to some Parkside wagons to give a rake of 30. Here is a
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Bristol Barrow Road Jubilees

I have started to convert some of my Bachmann short firebox Jubilees to P4 in order to run them on my layout. This project had been stalled for a while as I pondered on the best way to do this, however a visit by Dave Holt, David Clarke and Steve Ridgeway in September gave me the necessary push to get on with it. My conversion replaces the wheels with an Alan Gibson 3mm axle set of drivers plus bogie and tender wheels. Replacement crankpins are Markits stainless steel products. The only other mo
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Bristol Barrow Road - Engine Shed Sidings Signal Box

Engine Shed Sidings signal box is now finished and has taken it's place on the layout. The box is constructed from a Churchward Models etched brass kit I picked up from Ebay, and contains a detailed interior from Springside items with armchair and signalmen from Modelu. The final items, shown in the photos, are the two downpipes which are attached using Modelu cast iron holderbats. Only the two nameboards to make.              
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Bristol Barrow Road - Roundhouse Roof

It has been a while since I did any work on the roundhouse roof so I recently added the smoke hood support wires, 4 to each hood, to the 22 that are inside the shed. The roof is entirely scratchbuilt from brass section and nickel silver wire. The smoke hoods are of two types - 3 older wooden types which are ex Midland/LMS in origin which I scratchbuilt from plasticard and brass angle, and 19 'asbestos/concrete' units which are cast in resin by my Friend Morgan from a 3D printed master.
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Bristol Barrow Road - Testing a part rebuilt double slip

I am continuing the debugging of the track. Following the test of the turnouts from the Up main line into the engine shed with the 3F - shown in the previous videos - testing with my Hornby Black 5 showed that all was not well with the double slip. The Black 5 had an annoying habit of mounting the crossing V at the coaler end of the slip. This double slip was the first 'complicated' piece of track I ever built and has only recently come into full operational use. If you look closely at the slip
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Bristol Barrow Road - Lawrence Hill Junction and some videos

Chris Yates has finished building the 'temporary panel' for Lawrence Hill Junction signal box, another job done for which I am very grateful. I say temporary because it only controls the turnouts at present as I have yet to build the signals.   Chris has built in interlocking on the junction using relays with LEDs confirming turnout settings and the junction with entrance and exit to the shed yard is now fully operational.   Lawrence Hill Junction Panel   Lawrence Hill double junction  
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Bristol Barrow Road - Storage Sidings and other updates

It's been a while since I updated my blog but we haven't been idle. Chris has made two Power Boxes one for the scenic side and a Booster box for the Storage sidings. Each contain a Maplins X21M Power unit, PSX circuit breakers, a DCC Concepts 12v Power supply PSU2 and NCE Units - a 5amp command unit in the main box and a Booster in the other. They do look rather smart.   Main Power Box   Booster Box   Engine Shed Sidings now has a panel for the turnouts which controls the Fishponds banke
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Bristol Barrow Road - Storage Sidings Update

I have been slowly plodding on with the storage sidings and have now completed turnout 26 out of 39. The main UP and DOWN sidings are finished as far as the track laying is concerned with a number of buffers to be added at a later date. They are not yet operational as the task of wiring and the addition of digital cobalt's is the next item on the schedule after track laying is complete. Extra sidings are to be installed at either end of the UP and DOWN sidings and the first of these, which leads
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Bristol Barrow Road - Laying Storage Sidings

Just a quick update on the storage sidings. The total of turnouts built is now 11 with ten now fixed in position in the storage sidings and three of the sidings laid. The turnouts are all constructed using 1.6mm thick double sided copper clad sleepers whilst the sidings are K&L and C&L lengths of flexitrack board joints strengthened using copper clad sleeper strips.   Over the hot weather I have checked all the rail joints on the turnouts and board joints and where necessary I have wid
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Bristol Barrow Road - Boiler House and Stores

By way of a change I have spent some time assembling the two kits of laser cut parts for the boiler house and the stores at the rear of the shed these being the last of the buildings provided by York Modelmaking back in 2010. Both buildings are made from 2mm laser cut mdf with hard plastic [Rowmark] for the window frames and brick details which I glue to the mdf. Each building was given a coat of grey primer and coloured using Faber polychromos crayons. The tiles are also from York and are self
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Bristol Barrow Road - Making a few points

The layout is not operational at present as all the power supply units, NCE equipment and circuit breakers are elsewhere for fitting into two power boxes than are being made for me - thanks again Chris!   In the meantime I decided to make a start on the B7R and B7L turnouts for the storage sidings. I am using 4mm wide x 1.6mm thick copper clad strip for the sleeper timbers and Nickel silver bullhead rail.   These series of photos show the latter stages of construction. The timbers have been
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Bristol Barrow Road - Black 5 44965 plus Comet Coaches

Diesels are alright but I thought it about time we had steam so this afternoon my modified Hornby Black 5 44965 stretched her legs around the layout for the first time.   The engine is converted to P4 using Alan Gibson wheels. The Hornby chassis has cosmetic frames - a Gibson milled version - which I attached using strips of plasticard, as spacers, to widen the distance between the frames. The coupling rods and valve gear are the original Hornby ones - I removed the threaded nuts from the Horn
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Bristol Barrow Road - D13 on test run with rake of Comet Coaches

I have a rake of Comet coaches which I converted from 00 using Bill Bedford sprung bogies and Gibson P4 wheels. These coaches are a fixed rake and have now had Alex Jackson couplings added to each end to enable a test run of the complete set. As they are heavy I decided to use one of my converted Bachmann Peaks, D13, to pull the test train.     For those interested the rake is made up as follows;-   Corridor Brake Composite D1720A Restaurant Composite D1811 Open First - Porthole D2160 C
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Bristol Barrow Road - P4 converted Bachmann Midland 4F 43875 on test run

In 2013 I wrote an article for LMS Review on the then new Bachmann 4F. One of the two I purchased was 43875 which visited the Bristol shed.         My intention was to convert it to P4 for the layout and a couple of years ago I purchased an Easi-Chassis kit from Brassmasters and started the conversion. This ground to a halt early in 2017 pending a decision on which method of pick-ups to use. Over the past week I have completed the project - not the easiest conversion to attempt - and
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Bristol Barrow Road - Wiring the Gap

The lift out board - number 19 - has now been fully wired. Power to board 19 is fed via four brass strips on the board which, when the board is in position, make contact with 4 brass sprung plungers obtained from old light bulb connectors. To enable power to still feed Board 20 when 19 is lifted out power cables have been run down the support legs, across the floor and up the support leg of board 20. To avoid the potential disaster of engines and stock being accidentally driven into the abyss a
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Bristol Barrow Road - Youtube video of passenger and freight trains.

On Monday this week with the help of my friend Chris - builder of baseboards and designer of electrics - the lift out section Board 19 was fitted to complete the full circuit of the layout and some test trains were run to prove the electrics. On tuesday the local Scalefour Society area group had their monthly meeting and the layout was subjected to an evening of, in the main, successful running a variety of locos and rolling stock. Due to the numbers attending it was not possible to take any sui
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Bristol Barrow Road - D41 Test run in storage sidings

Just in time for Christmas here is D41 plus four Bachmann Mk1s on the first test of the Up Main from Lawrence Hill Junction through the storage sidings. The Bachmann Peak runs on a Rumney Models chassis courtesy of Justin and the Mk1s run on Bill Bedford bogies courtesy of Morgan - thanks to you both.     Happy Christmas and New Year to you all.   Robin
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Bristol Barrow Road - Wiring Progress 3

I've had a train - Bachmann Peak D41 on Rumney Chassis plus four Bachmann MK1s performing a test run through the storage sidings. The test traversed Board 9 to Board 18 and involved a number of successful forward and reverse moves - I really must register on Youtube and take some videos.   Wiring has progressed further since my last entry with the production of 16 wiring looms for the analogue Cobalt point motors. These are positioned along the double track main line and will be operated from
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Bristol Barrow Road - More Wiring Progress 2

A bit more progress over the past week with Boards 18 and 20 sorted today. This leaves the lift out section to wire followed by a start on the wiring for the cobalt point motors.   Board 18     Board 18 top view     Boards 17 and 18     Board 20  
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Bristol Barrow Road - Further Wiring Progress

Further progress on the wiring with Boards 14 and 15 now partially complete. The immediate object is to wire the complete circuit of the double track main line. Boards 14 and 15 are storage yard boards on which the bus bars are now fixed as are the inter board 'jumper' cables. The UTP cab bus units are also now wired.   Board 14   Board 14   Board 14   Board 15   I've just started on Board 16, with just 17 to 20 to go.
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Bristol Barrow Road - Wiring the layout

Since July, modelling time has been allocated to wiring the layout. The scenic section of the layout consists of boards numbered 1 to 9 and these are the ones I am focused on at present. This part of the layout is divided into a number of power zones - 1 and 2 the UP and DOWN main lines. Zone 5 the sidings alongside the shed; Zone 6 & 7 divide the main yard and Zone 8 the roundhouse. I have added two power buses for the cobalt point motors in the yard which are Zones 3 & 4. Just to give
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Bristol Barrow Road - Bridging the Gap

This update covers work carried out since my last entry. The lift out board has been tweaked to ensure it slots into the layout by the shed door. I have replaced the over catches with a more robust set to ensure the board locks firmly into position.     Black card strips have been laid in preparation for the final lengths of track to complete the UP and DOWN main lines.     The second pair of ' King turnouts' for access to the Up and Down Storage sidings and the Second Crossover are
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Bristol Barrow Road - Storage Sidings turnouts

The first two B7 'King' Turnouts have been installed this afternoon together with the first two metre lengths of K&L flexitrack [ have I had it in stock that long!!]. The track board joints are my usual 12BA brass cheese-head screws through ply sleepers. With the holes are drilled 1.2mm and screwed down they have the benefit of vertical adjustment to the underside of the rail prior to soldering. Each rail is then cut in situ using a fine razor saw. Strips of 0.3mm black card are used as a ba
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Bristol Barrow Road - Storage Sidings Track

Both C12 crossovers are now built, one for each end. Starting at the Lawrence Hill Junction end of the layout I have now extended the hand built track onto the first storage yard board to join up with the C12 crossover at that end. The first B7L turnout from the Up Main to the storage sidings is also built and is test positioned in the following photos. I have built the end curves using ply and rivet construction to make sure the gauge widening is correct. All the straight track in the storage s
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